Surface configuration of a diffuser for a bumper of a vehicle



FIG. 1 is a right perspective view of a surface configuration of a diffuser for a bumper of a vehicle according to my novel design;

FIG. 2 is a front view of the surface configuration of a diffuser for a bumper of a vehicle according to my novel design;

FIG. 3 is a left side view of the surface configuration of a diffuser for a bumper of a vehicle according to my novel design; and,

FIG. 4 is a left perspective view of the surface configuration of a diffuser for a bumper of a vehicle according to my novel design, showing the placement on the bumper.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a surface configuration of a diffuser for a bumper of a vehicle, as shown and described. 